WampServer

I tried to ad a different version of apache and php and the version(s) were incompatible with the current installation. Not when right click on the wampserver under version I see a triangle icon that essentiall tells me that this version failed and below it is a check icon showing the current version. Is there a way to remove the version with the triangle from the context menu? Thank you.

Just the folder of the offending version from Wamp's bin directory. For example:
Open the folder C:\wamp\bin\php\ and press delete for the version you no longer want.